Take-up mechanism for looms.



T. NEVIN.

TAKE-UP MEGHANISM POR LOOMS.

APPLICATION FILED APR. 4, 190s.

Patented Mar. 2, i909.

APPLIOTION FILED MAE. 16

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n take-u Unrrnn sauras PATENT cerros.

THOMAS NEVIN, OF LOWELL, MASSACHUSETTS, ASSIGNOR T() DRAIER COMPANY, OF

. HOPEDALE, MASSACHUSETTS, A CORPORATION Ol" MAINE.

TAKE-UP MECHANISM FOR LOOMS.

Specification oi Letters Patent.

Patented Maren 2, 1909.

Application filed April 4, 1908. Serial No. 425,139.

To alt whom it may concern:

Be 1t known that I, THOMAS N EvIN, a citi` zen of the United States, and resident of Lowell, county of Middlesex, State of Massachusetts, have invented an Improvement in Take-Up Mechanism for Looms, of which the following description, in connection with the accompanying drawing, is a specification,

like characters on the drawing representing like parts.

Tins invention relates to talrefnp mechanl ism for looms and has for its object the production of'means whereby at the will of the operator the take-up mechanism can be released from the drivin(T or actuating means therefor so that the ta e-upcan he moved freely by hand, the let-hac.: device for the being rendered inoperative hy or throug the manual operation of the releasino* device.

have illustrated my invention in connection with a positivo and continuously driven take-u mechanism, having a device arrange( to let haci: a predetermined amount Whenever the tal'ze-'up is arrested automatically, as hy or through the occurrence of filling absence, a loom of this general type heilig shown in United States latent No. 6455,90?, granted to A. D. Emery May l, 1000.

At times it is desirable to cil'ect marinai release ofthe take-up mechanism from the control ofthe driving and let-hack appliances, so that the weaver may tighten up or slaclfen the cloth, and herein l have devised a simple device of this character, arranged to he operated by foot pressure at a convenient point at l the front of the loom.

The novel features ol' my invention will he fully descrihed in the suhjoined specification and particularly pointed out in the vfollowing claims.

Figure 1 is a iront elevation of the main y part of the take-up mechanism of a loom,

` ing to the right, showing the letehack pawl and ratchet.

The take-up roll 'l has an attached gear '1" meshing with a gear T2 driven b a pinion t2, the latter having an attached, arger pinion t3 meshing with a pinion t4 secured to or forming part of a large gear T4, this latter gear being 1n continuous engagement. with a smaller gear E, loosely mounted on a shaft D and having an attached ratchet 1, the train of gearing heilig suhstantially of well known construction.

In the construction shown a constantly rotating shaft e2 has a worm c3 in mesh with a worm-gear c4 fast on the shaft Dthe latter hcing mounted in a long hearing DX, as in the patentreferred to, hut the ciutclrand lethack devices herein are dill'erent in structure.

Clutch teeth 2, iig. 4, on the side oi the gear E are ada )ted to cooperate with a series of teeth 3 on tlhe movable clutch member 4, splined to the shaft l.) and cored out at 5 to receive a spring 0, idg. 3, supported against a collar 7 tast on the shaft, the spring acting to maintain the clutch teeth 2, 3 in engagement, to cause rotation of the gear E with the driving or actuating shaft l), which is continuously rotated, said gear lil constituting a driven memlrer.

A hraclfet 8 is adjustahly mounted on the stand TX for the cloths-oil journal and has mounted thereon a let-hacl pawl 9 slotted at '10, ifig. 4, to emhrace the stud 11 on the hracl-et, said pawl engaging the ratchet 1 and letting hach one or more teeth when take-up is arrested, this pawl heing of well l-nown construction. li said pawl iets haci: say three teeth it will he obvious that whenever the clutch is rendered inoperative the tale-up mechanism will he released from control of its driving means and will let hack, this same operation taking place in the Emery patent hut hy different means.

lin Figs. 1 and 2 the roch-shaft d is arranged to control the operation of automatic lilling replenishing mechanism, as in the, Emery patent, and the arm (l2 is arranged to he rooted hy the operation of the filling-fork slide when lilling ahsence is detected, said arni having an extension pivotally connected with a depending linlf3 ointed at its lower end to an arm j of a yolzefl having a fixed lulcrum fi", ysuhstantially as in the Emery pat-ent. This y he coi' perates with the sliding clutch memher 4 and disengages the clutch teeth 2, 3 when filling absence is detected. Herein I have formed the yoke with a depending, cam-like-extension 12 ada ted to be engaged by the bent end 13 of a s ort shaft 14 rotatably mounted in a bearing 15 shown as bolted to the crossfirth AX of the loom frame, Figs. 1 and 2, the shaft having secured to it a forwardly and downwardly extended foot treadle 16. The treadle has 5 suitably attachedl to it an upturned, bent arm 17, the free end 18 thereof beine extended into position below and back of the letback pawl 9, as clearly shown in l* ig. 4. Normally the knock-off or releasing member 18 exerts no control over said pawl 9, and the automatic operation of the yole f3 is performed with perfect freedom so far as concerns the clutch releasing means just described. 1f, however,\'the weaver wishes to move the talrefnp by hand, supposing tne loom to be at rest, he presses down the treadle 16, thereby swinging forward the arm 13 against the cam extension 12, and movingr it to the right, lfig. 1, to release the clutch, thus disconnecting the take-up mechanism from its driving or actuating means, and at the same time the knocleoff member 18 engages and lifts the let-back pawlQ from the ratchet 1. The take up mechanism can now be moved forward or backward byhand, as desired, releaseof the treadle `Arestoring the arts to normal running iosition.

Should the weaver wisn for /any reason to throw the take-up out of operation while the v loom is in motion it can be done by the same instrumentality, as will be manifest.

By making the throw-out means for the take-up operative by foot pressure the hands of the weaver are left free to perform any other operation necessary.

Having fully described iny invention, what I claim as new and desire to secure by Letters Patient is 1. The combination, with take-up meehanism, a continuerisly-rotating driving member therefor, a clutch between it and said mechanisim and means normally acting to ell'cct and control the amount. of let-back when taire-np is arrested, of means operated at will to render the eluteh inoperative and at the same ltime release the take-up mechanism fromthalet-baeli eimtrolling means.r

2. 'lhe'combinatioin with take-'np mechanism, driving means therefor, a cluteh between said means and rneehanism, and letbach controlling means normally aeting to ell'ect let-bank.vheiitheeliteh is inoperative, vf-an instrumentalityP operative'at `will to .simultaneously render inoperative thel elnteh and theletbm-h eontrolling mean-i, sail instrumentali()l iin-hiding azi operatingr membertmerated by t'oot-pressuro.

I. rl`hel eombination. with take-up mechanism, a rotatable driving-membery a driven member normally eooperating therewith and in permanent connection.with said take-up mechanism, and means normally acting to pcrinit let-back when the driven member its thrown out of operation, of a device adapted to throw the driven member out of operation automatically, and means operative at will to simultaneously release the take-up mechanism from control of the driving member and the let-back means.

4.- The combination with take-up mechanism, a rotatable driving member,l a driven member normally cooperating therewith and in permanent connection with said take-up mechanism, a ratchet attached to the driven member, and a let-back pawl normally co- .operatingwith the ratchet to eect let-back when the driven member is thrown out of operation, of means operative at will b foot pressure to simultaneously throw the riven member out of operation and disengage the let-back pawl from said ratchet.

5. The combination, with take-u .mechanism, d rivi ng means therefor normal y acting to effect letback when the driving means is disconnected l'from the take-up mechanism, of a foot-operated. instrumentality to disconnect at will said take-u mechanism and its driving means and simu taneously release said mechanism from control of the let-'back means. i

, 6. The combination, with take-up meehanism, driving means therefor', and means normally acting to c 'ect let-back when the driv- A ing means is disconnected from the take-up mechanism, of means adapted to disconnect automatically the take-up mechanism and the driving means therefor, and an .instru-v mentality operated at will by foot-pressure to release the take-up mechanism from the control of the,driving means and the let-back means.

7. The combination, with take-upmeclb anism, a contindously-rotating driving niember therefor, a/clutch between it and said mechanism, andmeans lnormally acting to efl'ect and control the amount of let-back when take-up is arrested, of means operated at will to render the clutch inoperative and to release the take-up mechanism from the let-backcontrolling means. 1

8. 'lhe combination, with take-up mechanism, a rotatable driving member, a driven member normally eoi'iperating tl'ierewith and inpe'rmanent connection with said take-up meehanism, and means normally acting to permit let-bark when the driven member is thrown out of operation, of a device adapted to throw the driven member out of operation automatieally, and means operative at will to release the tal e-up mechanism'from control of t he drivingmemberand thelct back means; ln testimony whereof, l have signed my name to this specification, in the presence of two subscribing witnesses.

' THOMAS NICVIN.

. lVitnesses:

ALBERT W. EDWARDS, EDWARD DAN OsGooD.' 

